Sound-record mold.



J. W. AYLSWOBTH. scum) RECORD MOLD.

APPLIUATIOR TILED JAN. 29, 1908. 932,237.

-' g i ii V1 ll Patented Aug". 24, 1909.

i icnown that. l, JONAS W. Arnswoir I of the United States, residing r:

223 Mn end evenne, East Orange, eennty of Essex, {l State cf New;Jersey, here invented "-"im new and nseinl' improvements cord iriolols,of which the foloescription. My invention relates to various new2121s.). useful improvements in sound record niolris, adapted for nee inthe melding of (.lnp nit records by :i spinning process in Wi mold isrotated at a high speed and centei charge of melten materiel which is r?tribntecl ever the record surface by cent ugal force. in actualpractice, rliilienity been eneonnterecl in constructing the en for theinohls in such a. Way that-they. be perfectly tight to prevent themolten warlike-material, Well as r prevent the entrance Water, Whi(linarily sprayed ever the inolils to records after the '*.vz1.x-lil emateri l. distributed over the record. surface.- the caps is readilyremovable so tl the receril is formed. it may be taken to permit therecord to be removed ironi inol ti afterhas contraci'e clieinetricellThe cther'cap iorins prnetieall perms fixture and considerable i hperieneecl in eennection "therewith, for reasen that when the reamingtool is intro- (iucecl to finish the interior of the record, i liable toinjure the em) 03/ the between the cap anti the mold. To everccine theseCliilieulties, 1 make use of the Q01 siruction hereinafter described andeleisn in which a hardened steel esp used, in addition to forming atight join 1U enC. of the meld, will also as for the reaming tool, linit-ien not only longit-inlinal y r the record, but also limiting th 1'which the reaming teal shell nri'lre the thickness of the reeerrl enciits it diameter.

In order that the invention may better understood, attention is directedt the a.ccompanying drewin thinning specification, and in Whieh Figurel, i:l01'} i'.l(llii1l 0 the complete mole; and l i spending View of thesame witl removed-and showing a recm't. i meld and the 1 amin toel "r.

"'EY, AStSIiENQIS. NEW JERSEY PATENT Aug". 241

0 views, Corresponding parts e t are represented erenee.

The meld l, is of any usual construction, formed on its interior with anegative tetien the desired master. At ene .1111, the meld is girovidexlwith e removable p secured in plRCQ by .1. spring ring 3, engagii eshell or recess the mold, whereby the cap .2 {I he remo ed by pullingthe same set ('ilCnj by means 03? e suitable tool. cle claim ,hecenstruction of this cap 1e present application, and it will benncleistoecl that any onier suitable arrangeineni; may adopt-ed for thepurpose. Freffl erehly, removable cap is provided with annular on itsinner face so as elefine the eerrespondingend of the mold.-

recerrl shewn in Fig. 2. Ordinarily the meld l is marl with n. liming of'cepper with en outer shell 0f brass. It.- is 1 m 7 N ieirnee. Wnn eshoulder 5, 111 which may be en-reved in negative, the name eftheselectiento he pliceteii, and engaging with tl should is a cap 6 held.in position in a; suitable way, as for example, by a ring 7, screwedinto the entl of the mold. It will he ebservecl that theshenlder 8 ofthe cap 6, i

s leeetel slightly Within the plane of the inner ed/ e of the shoulder5. When the rezmn we 9 .15 therefore introduced Within to thereby limitsneu movement and define the tl ekness of the record, as Well its in-'i'erier diameter. By making e cap of hardened steel, as expl'zned, itcannotbe injured by, the reaming tool, While at the same Y me, itperforms the additional function of ecting es :1 te tee reaming tool,both longitudinally and diametrically.

Having now described. my invention, What.

iin new a 1d clesire to secure by Let- Pnteot is :lolloWs:-- i inriricnlsound record IllOlCl proi i r "led wish :1 cap of herd metal :t'ermeclwith i shenlrler 0n the inner side therehevine' e c lindrnael bore of aless radius n the inel ne thickness of ihe record JEUTZfi adapted inserve as a gage to 1101 dimensions of the rcord. in n latter,substantially as set forth. i .rica'i sound record mold fgrmed airinrwith a tapered shouldr and witiz. cap of hardgmetal formed shoulderwhich engages the Quid-sir and having a cylindrical or dimensions of therecord lie latmr, substantially as set o'r lder h'aving a surthereefadapted to med tightly in engagezne mnnr rule 01 said shoulder, securelybut rcmovnbly so 5 substantially set forth.

M less diameter than the ta-J 6w, adapted to serve as a gauge to unirecord mold formed the record; and a cap face on ihe inner side thereofadapted to v fern: 0m) end of the'record, and a capof hard metal havingan annular shoulder maintained @ightly in engagement. with the outerside of said mold. shoulder, and means for securely but reinovz bly s0ma'ntaining it, sub'stzintiiilly set forth,

5. A cylindrical sound racc-rd mold formed on its interior with atapered shoulder, a hardened. steel cap nmintaincd tightly in engagementWith said shoulder and 21V Lhreaded ring engaging the cap, substantiallyasnnd for the purpo'sesset. fOllll.

This specification signed and wiincsse l. this 21 day of Jan. 1908 JONAS'W. JET. 3W )R'Iil.

wiiiness w v Finn a LEWIS, Grimm :KLEHM.

